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On their most recent trip along the Aussie coastline, Chris and Elsa were accompanied by many friends including the Bourne Identity star and his family, who frequently visit Australia and their own property in Byron Bay.

The holiday was organised for the 40th birthday of a friend of Chris', and the celebrated with what looked like to be around a dozen families coming together for some beach-side activities including a surf competition. You can't get more Byron than that!

Chris, Elsa, Matt and Luciana have become fast friends and love spending holidays with their families. (Image: Instagram @chrishemsworth)

Elsa shared a similar collection of photos captioning them, "Another fun trip with the best people and bunch of kids having the best time."

Keep scrolling for more snaps from the dreamy beach holiday.

We see you Matt Damon! (Image: Instagram @chrishemsworth)

Luciana and Elsa smile on the beach with another friend. (Image: Instagram @elsapatakyconfidential)

The kids, including Chris and Elsa's blonde twins Sasha and Tristan also got in on the fun. (Image: Instagram @elsapatakyconfidential)

This isn't the first time the two families have holidayed together. For Elsa's 42nd birthday last year, they visited San Sebastian, just off the North Coast of Spain, Elsa's home country.

Earlier that year Chris, Elsa, Matt and Luciana also soaked up some culture at the Byron Bay Bluesfest and they clearly like each other as the Good Will Hunting star and his family have a house right next door to Chris and Elsa.